{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Cocaine ( 40 mg / kg ) was injected subcutaneously for an acute experiment and subsequent 20 mg / kg doses twice daily for 3 days in a chronic study ."}
{"Disease": [], "Chemical": ["Cocaine"]}